STKR1001 Features: * Adjustable garage parking sensor * Safely and accurately park your car in tight garage spaces * Completely wireless. uses adjustable, ultrasonic, range finding technology not lasers which can damage eyes * Choose from 3 different stop zones * Mounts on walls, work benches, shelving or even the garage freezer...not your ceiling * No more garage fender benders or issues closing the garage door on the back bumper! * Requires 4 AA batteries (not included) Dimensions: * Dimensions: 6" H x 4" W x 1" D Warranty: * Easy to install and comes complete with all mounting hardware, instructions and warranty * 30 Days warranty